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INCOME TAXES - Narrative (Details) - USD ($)
 12 Months Ended
Dec. 25, 2022
Dec. 26, 2021
Dec. 27, 2020
Operating Loss Carryforwards [Line Items]      
Income tax expense $ 1,345,000 $ 147,000 $ 0
Net deferred tax asset 163,800,000 126,800,000  
Valuation allowance 163,750,000 126,847,000  
Increase in valuation allowance 36,900,000    
Unrecognized tax benefits 1,556,000 1,333,000 $ 907,000
Impact of unrecognized tax benefits, if recognized 0    
Interest of penalties associated with any uncertain tax positions 0 $ 0  
U.S. Federal      
Operating Loss Carryforwards [Line Items]      
Net operating loss carryforwards 688,500,000    
Net operating loss carryforwards subject to expiration 101,900,000    
Net operating loss carryforwards not subject to expiration 586,600,000    
State      
Operating Loss Carryforwards [Line Items]      
Net operating loss carryforwards 610,100,000    
Net operating loss carryforwards subject to expiration 538,300,000    
Net operating loss carryforwards not subject to expiration $ 71,800,000